Fig. 2From: Outbreaks of publications about emerging infectious diseases: the case of SARS-CoV-2 and Zika virusProportions of different study designs of published research on SARS-CoV-2 (SARS-CoV-2) and Zika virus (Zika virus) over time. Epidemiological, basic, and “non-original” research (a); epidemiological research by study design (b). For display purposes SARS-CoV-2 data is shown by week and Zika virus data by month. SARS-CoV-2: Severe acute respiratory syndrome coronavirus 2; PHEIC: Public Health Emergency of International ConcernBack to article page